Strength, rigidity, reliability and durability considerations in sheet metal parts design

Design principles for strength and rigidity
Sheet metal parts are often used to support and connect other parts in the system, which means that they must be able to withstand the weight, vibration and possible other external forces from other parts. Therefore, in the design process, strength and rigidity become two core design principles.

Strength refers to the ability of a part to resist damage from external forces. When designing, it is necessary to accurately evaluate the maximum load that the part may bear during operation, and select the appropriate material and thickness based on this evaluation result. For example, for parts that need to withstand greater pressure, high-quality materials such as high-strength steel or aluminum alloy are usually selected to ensure that the parts are not prone to plastic deformation or fracture when subjected to force.

Rigidity refers to the ability of a part to maintain its original shape and size when subjected to external forces. For sheet metal parts, rigidity is not only related to the performance of the part itself, but also directly affects the stability and accuracy of the entire system. Therefore, in the design process, it is necessary to improve the rigidity of the part through a reasonable structural form. For example, structures such as reinforcing ribs and bending edges can be used to increase the rigidity of the part, thereby improving its ability to resist deformation.

Design considerations for reliability and durability
In addition to strength and stiffness, reliability and durability are also two important aspects that are indispensable in the design of sheet metal parts. In order to meet the needs of long-term use, parts must be able to maintain stable performance in various harsh working environments.

Reliability refers to the ability of parts to continuously and stably perform their intended functions under specified conditions of use. During the design process, it is necessary to consider the working environment and use conditions of the parts, such as temperature, humidity, vibration, etc., and take corresponding measures to improve the reliability of the parts. For example, for parts that need to work in a high temperature environment, high temperature resistant materials can be selected, and their heat dissipation structure can be optimized to reduce the impact of temperature on the performance of the parts.

Durability refers to the ability of parts to maintain their original performance and quality during long-term use. For sheet metal parts, durability is usually closely related to factors such as fatigue resistance and corrosion resistance of their materials and the precision of the manufacturing process. Therefore, during the design process, it is necessary to select materials with good durability and adopt advanced manufacturing processes to ensure the quality of parts. In addition, the durability of parts can also be improved through reasonable structural design, such as using rounded corner transitions, avoiding stress concentration and other structural forms to reduce fatigue damage to parts.